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Title:
HIGH-STRENGTH, LOW-MAGNETISM ANCHOR CHAIN AND PROCESS FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/095619
Kind Code:
A1
Abstract:
Disclosed are a high-strength, low-magnetism anchor chain and a process for manufacturing same. The process comprising the following steps: (1) heating rod material at a heating temperature of 800-900ºC and weaving a ring under heat; (2) after weaving the ring under heat, lowering the temperature of a ring body to less than 700ºC and welding; (3) clamping an anchor ring by means of a fixing clamp, and removing burrs under pressure twice; (4) after burr removal, lowering the temperature of the back of the ring and pressing; and (5) at a temperature of 1000-1100ºC, performing solution treatment on the high-strength, low-magnetism anchor chain. Compared with the traditional process flow, V-shaped openings and misalignment can be avoided, and the surface quality of flash welding can be controlled; electrode burn damage is reduced and the risk of fissures inside the ring is reduced; subsequent milling is reduced, increasing production efficiency; and the occurrence of D-shaped rings is effectively reduced, while also facilitating prevention of magnetism of the chain rings.

Inventors:
TAO, Xing (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
TAO, Anxiang (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
TAO, Liangfeng (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
ZHANG, Weixin (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
LI, Jian (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
ZHANG, Ming (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
HUANG, Yonghong (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
ZHU, Qiaoliang (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
Application Number:
CN2018/082656
Publication Date:
May 23, 2019
Filing Date:
April 11, 2018
Export Citation:
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Assignee:
JIANGSU ASIAN STAR ANCHOR CHAIN CO., LTD. (No. 88 Meirengang Road, Dongxing Jingjiang, Jiangsu 0, 214500, CN)
International Classes:
B23P15/00
Foreign References:
CN107649843A2018-02-02
CN103447777A2013-12-18
US4428781A1984-01-31
JPH03125688A1991-05-29
Attorney, Agent or Firm:
JINGJIANG CITY PATENT OFFICE (LU Ping, 9-D International Trade Center,No. 68 Renmin Road, Jingjian, Taizhou Jiangsu 0, 214500, CN)
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